Horace a



(No Model.)

H. A. WETSELL.

THRASHING MACHINEs No. 336,366. Patented Feb. 16, 1886.

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ATTORNEYS.

Niren STATES ArnNr Fries.

HORACE A. WETSLL, OF TRACY, MINNESOTA.

THRASHING- MACHINE.

,EPECIEICATION forming part of Letters Patent No. 336,366, dated February 16, 1886.

Application tiled April 18, 1&65.

To all whom, it may concern:

Be it known that I, HORACE A. WETsELL, of Tracy, in the county of Lyon and State of Minnesota, have invented certain new and useful Improvements in Thrashing-lliachines, of which the following is a full, clear, and exact description.

This invention consists in the construction and arrangement of parts, as will he hereinafter set forth and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l represents a longitudinal vertical section on the line x x, Fig. 2, of a thrashingmachine embodying my invention, with its outer boxing, feed-hood, and other parts not immediately relating to my invention removed. Fig. 2 is a horizontal section of the same on the irregular line y y in Fig. l, and Fig. 3 a transverse vertical' section on the irregular line z e in Fig. l.

On the frame of the machine, which may be of any suitable construction, are mounted du plicate thrashing-cylinders A A parallel with each other, and the one, A, at any desired distance in rear of the other. These cylinders are made to rotate in reverse directions relatively to each other, as indicated by the arrows w, which may be done by power applied to the shaft b of the front cylinder and connecting said shaft by bevel-gears c, and intermediate shaft, d, with the shaft b of the other cylinder; or it may be otherwise done. As shown in the drawings, the two cylinders are represented as geared to rotate at the same velocity; but they may travel at dierent speeds, and in some cases it will be advantageous to have the rear cylinder run much faster than the front cylinder.

B is the feed-table which, if desired, may be constructed in part of hinged sections e e e, secured by buttons f,- and G is the feed-board to the front cylinder, A. The short sections e are hinged at their outer ends to the inner edges of the sides of the table, and the buttons f are pvoted near the inner corners of said short sections. The long section e is hinged at one end to one side of the table, and has a button on its other end to engage the Serial No. 162,710. (Xo model.)

The grid D is journaled over the upper portion of the off side of the cylinder and tted to rock in bearings g g, the teeth of the cylinder A passing between the teeth of the said grid D, the teeth of which latter in turn pass down through a toothed or barred clearer, E.

The grid D for the rear cylinder,A, through which the teeth of said cylinder work, is in the form of a backwardly and downwardly inclining open-ended grate or clearer, arranged on the front side of the cylinder and fitted to rock at its upper end, as at 71. h, in longitudinally-sliding bearings t' ,to provide for its adjustment closer to or farther from the cylinder to suit different grains, &c., and to adapt the machine to thrashing flax, the bolls of which will all be required to run into the second cylinder only, and in this case the grid D is slid back or adjusted so as to throw it out of operative connection with the cylinder A. is a separating-concave, F, pivoted, as at k, in the rear and resting at its forward end by a cross-bar, Z, on toes m,.of which there may be one on either side, attached to a rocking bar, G. The free lower end or rear of the grid D rests on the free end or sides of the separating.- concave F, so that both rise or fall together, according to the direction in which the bar G is rocked.

The bar G, and also the rocking back lor Beneath the second or rea-r cylinder, A', Y

bar of thegrid D of the rst cylinder are each provided with a crank, n, to which is attached a cord, chain, or strap, Io, arranged to pass over a pulley, r, and carrying a weight, H. These weights H serve to hold the pivoted concave and grid up or into proper proximity with the cylinders A A', subject to any suitable stops, and to admit of their yielding or playing up and down, whereby they are made selt'- adjusting to suit light or heavy thrashing and do clean work. For ordinary easy work, the weights H H may be replaced by lighter ones. In this way, or by these means, perfect work may be done in all kinds of thrashing.

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Behind each cylinderis a board or guide, I, to hold the straw in any way that may be dedesired.

S is a rear hood, which is curved and provided internally with curved elastic strawdelivery fingers s.

When the usual feed-cap is put on the machine, the operator can stand and feed without exposing himself to dust or sticks being thrown by the cylinder A in to his eyes or face, said cylinder, by its direction of rotation and the course oi' the feed, carrying everything away from him. The two cylinders acting in succession on the grain will effect much more thorough and easier thrashing, and in case of any heavy obstaclesgetting into the machine, the concave and grids will yield or let up, without bending a tooth or doing any harm, and perfect safetywill be secured to the feeder, and more grain may be thrashed by the machine in a given time than with ordinary thrashers. rlhis arrangement and action of the cylinders and concave and grids may be applied to different kinds of thrashers. All choking of the grain, as where only a single cylinder is used, will be avoided, and the grain will pass clear and 'better through the machine, and a proper amount of space in the concave and grids relatively to the feed will be maintained.

If desired, the rear cylinder may be driven at such an increased velocity as to thrash at touch without any concave, and each cylinder will act as a balance-wheel to the other, and there will be but little or no jar in feeding in wet bundles or heavy substances, all of which will add to the power and efficiency of the machine.

The usual or any suitable elevator, J, vmay be used and the same be arranged to deliver between the cylinders, as shown, when it is required to pass the material to be thrashed directly to the second cylinder without running it through the first.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with the frame and two thrashing-cylinders arranged thereon in approximately the same horizontal plane, of a grid over the forward cylinder and a grid intermediate of the two cylinders, substantially as set forth.

2. The combination, with the thrashing-cylinders, of a grid overth-e forward cylinder, a

clearer therefor, an .intermediate grid, a downwardly-projecting guide over the forward end of the intermediate grid, and a concavebe'- low the rear cylinder, substantially as set forth.

3. The combination,with the thrashing-cylinders and a grid over the forward cylinder, of anintermediate grid pivoted at its forward end in adjustable bearings, and a concave below the rear cylinder, substantially as set forth.

4. The combination,with the thrashing-cylinders and a grid over the forward cylinder, of a concave pivoted at its rear end below the rear cylinder, a roclcshaft between the two cylinders on which the free end of the concave rests, and an intermediate grid pivoted at its forward end and resting at its rear end on the forward end of the concave, substantially as set forth.

5. The combination of the thrashing-cylinders in approximately the same horizontal plane, a grid over the forward cylinder, the

counter-balanced rock-shaft between said cylinders, the pivoted concave below the rearv cylinder and resting at its free end on said rock-shaft, and the intermediate inclined pivoted grid resting at its rear lower end on the concave, and longitudinally-adjustable bearings for the upper forward end of said grid, substantially as set forth.

6. The combination,with the thrashing-cylinders, of a yielding grid above and iu rear of the axis ofthe forward cylinder. a guide or dellector in rear of said grid, an intermediate yielding gridbelow the said guide or deiector,

relation to said cylinders, substantially as set` forth.

HORACE A.. WETSELL.

Witnesses:

OLE OEsTENsoE, JOHN A. CRAIG;

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